褐飞虱是一种水稻生产上危害较严重的害虫。吡蚜酮作为防治稻飞虱的首选长效药剂，使用频繁。为此，笔者结合平湖当地近年来相关田间试验和防治实践，分析了褐飞虱对吡蚜酮较快产生抗药性的原因，并从抗性治理角度提出加强抗性监测、调整防治策略、筛选新药剂、合理轮换和混用，以及推进病虫统防统治等对策建议。

Brown planthopper（BPH） is a serious pest of rice. Pymetrozine is frequently used as a preferred long-acting insecticide against it. Combined with the local field experiments and practices in recent years, the authors analyzed the causes of fast resistance of BPH to pymetrozine, and proposed some useful suggestions from the perspective of resistance management, such as strengthen resistance monitoring, adjust control strategies, screening new insecticides, alternate or mix with insecticides, application of united prevention and control, and so on.